Sink and drainboard assembly



July 28, 1953 A. H. 'GALLE 2,646,575

SINK AND DRAINBOARD ASSEMBLY Filed May 18, 1949 2 Sheets-Sheet 2'IIIIIIIIIII Patented July 28, 1953 SINK AND DRAINBOARD ASSEMBLY AndrewH. Galley, York Mills, Toronto, Ontario, Canada, assignor, by mesneassignments, to

Luxene, Inc., New York of Delaware N. Y., a corporation Application May18, 1949, Serial No. 93,865

In Canada March 18, 1949 4 Claims. 1 The present invention relates to asink structure and a sink bowl and drainboard assembly designed tofacilitate the installation of the sink and to obtain importantadvantages and economies incident to the advanced design and structuralfeatures thereof. The advantages include an improved appearance with anuninterrupted or unbroken sink surface and added durability particularlyat the junction of the sink with the drainboard deck surface orcomposition deck covering material when the latter is employed. It isimportantly of a design which makes it practical for a small home ownerto make his own installation thereby avoiding the cost of outsideassistance, as the mode of installation is such as not to require theemployment of a highly skilled artisan.

In the past most sink bowls have been made of enameled steel wherein thetop flanges of the bowls have been of a thickness of from and heavier.As a result it was generally unsatisfactory to have the flange of thebowl rest on the sink deck due to the thickness of the flange edge andthe general practice therefor has been to install the bowls below thesink deck with the use of separable moldings between the flange of thebowl and the surface of the deck. In such installations to obtainsatisfactory appearance, with properly closed seams for sanitation andwater tightness, it has required the employment of highly skilledworkmen. Although many attempts were made to overcome the difficultiesin producing satisfactory sink installations in an economical mannernone, so far as I am aware, was entirely successful when carried intopractice commercially on an industrial scale.

In accordance with the present invention the referred to diflicult-iesof installation and other disadvantages of prior art structures areovercome by the employment of a single piece sink bowl drawn or pressedfrom sheets of stainless alloy of relatively thin gauge, ofapproximately of an inch in thickness. formed with a marginal,horizontal flange at its upper edge and the extreme edge of the flangeis ground or beveled to a degree suflicient to obtain a relativelysmooth joining between the drainboard deck surface and the flange wheninstalled with the flange bearing directly on the uppersurface of thedeck. In further accordance with the invention the integral bowl flangeis employed as the marginal molding and further as a clamping The bowlis means for the rigid attachment of the sink to the L 2 drainboard inconjunction and in cooperation with an improved and simplified securingmeans. The improvedsecuring means comprises metal straps secured, as bywelding or brazing, to the outer vertical surfaces of the bowl andprovided with apertures to receive the ends of special clamping bolts.The bolts are fitted .with threaded adjusting nuts adapted to apply aclamping pressure against the under side of the drainboard desirablythrough interposed washers so as to effectively secure'the sinkassembly.

In the simplified arrangement of the invention the bowl or basin flangeis of substantial width or projection thereby to eliminate therequirement of other and separable molding. The method of assemblingpermits the flange to function as a clamping means in the securing ofthe sink by the special boltingarrangement. Moreover, as afurther resultof the substantialprojection of the flange, it permits of adesirabledegree of tolerance in the cutting of the drainboard opening thus topermit of a satisfactory assembly by relativelyunskilled labor. I havediscovered that these desirable results are obtainable in the manner ashereinafter more fully described by the employment of a unitary sinkformed of stainless alloys of such characteristics as to be of adequatestrength when made of the required relatively light gauge'sheet metal.

An object of the invention is to produce an improved sink structureparticularly adapted to facilitate assembly of the bowl with adrainboard or deck to permit of obtaining an improved assembly withouttherequirement of highly skilled labor therefor.

A further object of the invention is to produce an improved single piecesink bowl structure adapted to facilitate its installation without therequirement of a separable molding to effect a satisfactory joining witha supporting deck ,sur-

face.

flange at its upper edge and'drawn from a sheet of relatively thinstainless alloy and provided with depending metal straps formed withapertures for securing bolts having threaded shanks for the reception ofsecuring nuts positioned to exert a clamping pressure on the under sideof the drainboard or supporting deck for securing of the bowl with theflange thereof overlying an upper surface of the supporting deck.

Other" iobjects ands advantages will becomeapparent fromthe followingdescription taken in conjunction with the accompanying drawings inwhich:

Fig. 1 is a perspective view on thesink structure made in accordancewiththe presehtinvention and inverted in positionmmithexdrain- 5 bowl isfurther formed at its upper edge with a continuous marginal horizontalflange It! in-- tegral with the side and end walls and desirably.ofiaithickness OffF'aibOut' g/Iflflllfilf an inch. This .fiange in asshown, is ofa width-*- or outward extension from the side and end wallsto eiprovide for a substantial projection outwardly gimmtheiwallsso asto provide a continuous or finished molding of pleasing appearance. Thei'ifiange liiibycover-lying engagement with the upboard or deck of asink installations-as;aeprelim-iflsgzpenwuiliace .ofitheideck 2 at theframing of the inary step in the assembly pperation;

Fig. 2 is a similar view with the sink or bowl removed after the tracingof thefiutlinesofsithe bowl for location on the deck and havingidottedline indication for the cutting of an v,gil ning through the deck forthe reception of the"bowl or sink;

'--Eig:'-3--is* a perspectivewiewiof the supporting cabinet with the'fi'nished ripening in -the deck" for the -reeeptionof theebowl 'andwith thedatter shown in posit-ionto"be-lowered intoits assembledrelation;

Fig. 4" is a view -oi the sink structure =ofilthe presentinventionshowing the bowli in'side elevatiom and" assembled within' ithe opening1 of the sink deck' winches-shown irrbrokenxsection;

Figfifi isean 'explodedview. in side; elevation of thespecialelamping-bolt andassociated nut: and washer elements Gis-avertical sectional yiewrof aporti'on of the improved bowlastructurexassemhled with; the drainbo'a'rd for supp'ort and wvherein':the drainboa-rd has 1 a 21 de'ck coverings-of ilinoleum .1 .01. .the

"-l-ike,-'=arid -Fig. 7' 1$a detailed:.verticalusectionswiew pitaportion 0f: am assembly employing). ancomposition deck covering-which isscarfed .or countersunlr. :to produce a flush joint-connectioniwith:theJfiange ofthe bowl or sihk.

i Generally -speakingithe presentsinventioncontemplatestheprovisionmiasiiiksonbowl offisinglc piececonstructiomiformedibwflirawingaorepressing-sheet m'etal ofnr'el'ati vely =iight sgaugex. and which maydesirablybea corrosion resistant alloy such asithe alloy? known under.thettradeemark of Monel or other suitablazcorrosionrresistant metalalloysiich-as a inickel-echromium riron alloy. It further contemplatesamrimprovedsfstructural design and arrangement whereini.thenmitary. sinkbowl-vie i'ormed with-5a. horizontallya'emen'ding :upper margina1-1iiange1adaptedtitrithexassembly to provide an integral moldingxfinishnandtpto further function; iinucooperation cwithnarspecial-.clamping bolt.-arrangemenhnforirigidiy clamping eof. the sink to .asupporting. de'ckianchnvithinxan ."opening cut therethrmlgh.

A preferred 'embodimentofglthe' featuresof ..the invention is shown inthe drawings wherein like reference. numeralserare a appliediato..zcorresponding parts in the several: views. shown therein I" indicates:air-suitable: cabinet 'structure supporting the drainboardzor fdecki 2,which-may be of wood as customarily: madegand is provid- 1 ed with a outout opening 3 for the reception and positioning of the'sihk bo wl wereassembled therewith.

ia-"she'et. of corrosion.resistantealloysmetal'i: oi a openingeprovides'support for the bowl and affords a means-to contribute to the clampingof theibowlefonrigid installation. As a result of if its, substantialwidth or projection from the body of the bowl the arrangement permits ofa wide tolerance in the formation of the deck opening without impairinglthe security of and appearancenf lth final assembly.

.i Aslbest ishownwin-Figsr i; 5;--.and16 a; simplified and -'effective.meansr: foresecuring: or? clamping thebOWli'iElBIIlEIltliOi the:drainyor deck board; is provided. 3 Thisvsecuring-meam; as showniiscomposed: ofzrmetalrstrapsi 12 secured, asgby weldin nri :brazing'. to(the .zside .1: and-"endwalls' of i. the

'sink.=member: and :provided' witmprojecting lower 40 nuts .2! 8. :iThetnuts =l 8:;are' vertically-;=adjustable lthereonzzto asp-reducerclamping ;;pressure against ithe underside :of :-.:the "deck byengagement therewithnthrcugh' interposed r-washers or beariingsielements :19 ;;having .centrally positioning rbosseswmfzfitted:-.to'..the: central\ opening of the 'nut.

iiAszbestshown imFigs. Mi and 6 the straps l2 ofithezclampingf means areformed of. relatively thinefsheetn metal which ermits. of their being 5:passed-ithroughthe. drainboard'opening in the assembling 5025? the:bOWlrWlth the supporting deck :2. #AswillEbe-noted, 'theinwardextension.15 of the clampingboltis projected inwardly through ithesaperture 4310fthe-straps to -provide a beariingnthereon inssuchpmanner that theresulting .clamping pressures are applied to thestraps ver-.-'tically.--and-iengthwise of the. straps whereby the pressuresare:-resisted by'the metal on edge. iThisvgivesraddedistrength andrigidity to the 'iastening. and: with reduceddanger of loosening .ot thestrap elements.

.Thesimplioity and facility of installing theimprovedesinksbowl and'drainboard assembly will .be-ibestiunderst-oodbyreference to Figs. 1; 2and-3.

.-As:-.illustrated in.Eig.: 1: the sinkcbowl is placed iupside downauponthe sink. drainboard orideck 2 ins-the[30511111011201itSdESlIEdlOCECUOII and. a pencil .lineisdrawnon. thedeck using the outer ,edgeicfithe flange IB as a guide. .Thebowl is then7 removed and asillustrated .in Fig. 2. a cutting line .mawthen .be'drawnabout one-half inch-within theguidedrline andis-indioated asa-dotted line 22 :for the purpose of contact. The-opening 3 in the'rdeck.=.isi.tthen1tcutimrthe'nline'22. The bowl axis 7 5 :themplacedrinthezdeckppeningthe elearancebeing such as to permitpassage ofthe strapelements l2 permitting the-bowl to be lowered substantially flush withthe top surface of thedeck,

and with the flange H] of the .bowl providing-a rest hearing byoverlying the marginal edge surface of the opening 3 as best shown inFig. 4. The clamping means, composedfof the bolts 14, adjusting nuts l8and washers I9 are then assembled with the straps l2 by inserting thehorizontal bolt portions l5 within the apertures and in seatingregistration with the notches. After this, as will be understood, thenuts l8 are turned to a degree suiflcient to obtain the desired clampingpressure, through the interposed washer I9 against the under side of thedeck, so as to rigidly clamp the bowl in its assembled position. As hereshown the basin or bowl is generally rectangular in contour and isprovided with two of the securing straps l2 on each side surface but itwill be understood that the number of metal straps employed may bevaried depending on the size of the bowl and the amount of pressurerequired to pull the flange of the bowl to a tight seal on the upperdeck surface. Also, as will be appreciated a suitable cementing compoundof a waterproof nature may be applied between the basin flange and theupper surface of the deck in the making of the assembly.

While in the Fig. 4 illustration the basin is shown supported andclamped in position by direct engagement with the upper surface of thedrainboard it will be understood this may be modified by the employmentas shown in Fig. 6 of a drainboard 2 having a composition surfacingmaterial such as a linoleum deck layer 23 in which instance the flangeID of the sink will bear directly upon the deck composition surface.

While as described the relative thinness of the light gauge metal of theflange [0 provides a molding joint between the bowl and drainboard,which is substantially flush with the surface of the latter, a fullyflush construction may be obtained as shown in Fig. 7 by scarfing orcountersinking the composition deck material at the marginal edge of theopening 3 and of a depth to receive the flange In so that its uppersurface coincides with and is in the plane of the upper surface of thecomposition.

It is to be observed that the present invention provides a unitary typeof sink bowl of special design to simplify installation in a sink anddrainboard assembly and adapted to permit its successful installationwithout the requirement of highly skilled labor. It is, moreover, of astructural arrangement which permits of effecting a very satisfactoryjoint between the bowl and the deck surface without the employment ofseparable molding and one wherein the integral flange of the bowlprovides a molding connection of a desirable and pleasing appearance.The invention structure further provides simple and effective meansoperative in conjunction with the bowl flange, for rigidly clamping ofthe sink bowl in its assembled position and in a manner which permits ofits being readily removed for replacement of the deck surface whendesired.

Although the present invention has been described in conjunction withpreferred embodiments, it is to be understood that modifications andvariations may be resorted to without departing from the spirit andscope of the invention as those skilled in the art will readilyunderstand. Such modifications and variations are considered to bewithin the purview and scope of the invention and appended claims.

I claim: Y

1. An sink bowlunit formed of a corrosionresistant alloy and providedwith an integral marginal outwardly projecting flange of about ti oo"thickness at its upper edge adapted to overlie the marginal edge portiondefining a sink deck opening and provided with metal straps secured tothe bowl in position to pass through the opening and having portionsprojecting from the under side thereof and adjustable securing meansengaging the projecting portions and an under surface of the sink deckadapted in cooperation with the flange rigidly to secure the bowl inposition, said securing means comprising bolts having threaded upper endportions and inturned lower end portions having notched under sides andadjusting nuts threaded to the bolt upper ends.

v2. A sink and drainboard assembly comprising a unitary sink bowl formedof a pressed sheet of corrosion-resistant alloy, said drainboard beinprovided with an opening conforming to and slightly larger than the bodyof the bowl to receive the bowl positioned within the opening, said bowlbeing formed with an integral, continuous, horizontal flange projectingoutwardly from its upper edge in position to overlie the drainboard edgesurface defining the opening and said bowl having vertically positionedmetal straps secured to its outer surface to project from the under sidethereof and positioned to pass through the drainboard opening andadjustable securing means engaging an under surface of the drainboardand comprising bolts extending inwardly to engage the strap projectionsfor clamping of the bowl in position in cooperation with the overlyingflange.

3. A sink and drainboard assembly comprising a unitary sink bowl formedof a corrosionresistant alloy, said drainboard being provided with anopening conforming to and slightly larger than the body of the bowl toreceive the bowl positioned within the opening, said bowl being formedwith an integral, continuous, horizontal flange projecting outwardlyfrom its upper edge in position to overlie the margin edge surfacedeflning the drainboard opening and said bowl having verticallypositioned metal straps secured to its outer surface and havingapertured portions projecting from the under side thereof, said strapsbeing positioned to pass through the drainboard opening and adjustableclamping bolts having threaded nuts positioned to apply pressure againstthe under surface of the drainboard and having inwardly extendingnotched end portions engaging the strap projections within the aperturesfor clamping of the bowl in position in cooperation with the overlyingflange.

4. A sink and drainboard assembly comprising a unitary sink bowl formedof a corrosionresistant alloy, said drainboard being provided with anopening conforming to and slightly larger than the body of the bowl toreceive the bowl positioned within the opening, said bowl being formedwith an integral, continuous, horizontal flange projecting outwardlyfrom its upper edge in position to overlie the margin edge surfacedefining the drainboard opening and said bowl having verticallypositioned metal straps secured to its outer surface and havingapertured portions projecting from the under side thereof, said strapsbeing positioned to pass through the drainboard opening and adjustableclamping bolts having threaded nuts positioned to apply pressure againstthe undersurface of the drainboard and having inwardly extending notched

